CN207559523U - Double-layer stress bores outdoor terminal - Google Patents

Abstract

The utility model is related to a kind of double-layer stress to bore outdoor terminal, first stress cone and the second stress cone are compatible with, it is combined with each other, electric field is disperseed using double-layer structure, with significant double-layer stress dispersion effect, the utility model is made to can be adapted for the higher outdoor terminal of voltage class, stress cone ontology is larger, it is bored using double-layer stress, every small volume, injection moulding is easy, system easy to control the quality, first stress cone and the second stress cone are set on the cables respectively by first insulator and second insulator, the installation of first stress cone and the second stress cone is relatively firm, installation accuracy is higher.

Description

Double-layer stress bores outdoor terminal

Technical field

The utility model is related to power cable connector technical fields, and outdoor terminal is bored more particularly, to a kind of double-layer stress.

Background technology

Cable end generally requires stripping oversheath, inner sheath when being connect with transformer, controller switching equipment, branch equipment Deng connecing rear electric field to be anti-and concentrate, generate high-voltage breakdown and flashover, the electric field of cable terminal is disperseed, insulation performance etc. has one Continuous request, the prior art are the compound layer insulatings in outside using similar horn-like stress cone as mold insert, the insulating layer It is cyclic annular at interval convex " rain skirt " that outer surface some directly notes rubber, to increase outer creepage distance, reduce it is outer climbs electricity, have plenty of insulation Smooth outer surface of layer itself, then " rain skirt " layer is covered outside its smooth outer surface.This combined stress bores crosslinked cable terminal Head makes full use of its bell-mouthed geometry to disperse electric field, but this tubaeform stress cone to whole section of shielded layer stripping at Electric field dispersion effect it is unsatisfactory.

Utility model content

The technical problems to be solved in the utility model is：In order to which the stress cone in existing outdoor terminal is overcome to shield whole section The problem of electric field dispersion effect at layer stripping is unsatisfactory is covered, a kind of double-layer stress cone outdoor terminal is provided.

Technical solution is used by the utility model solves its technical problem：A kind of double-layer stress bores outdoor terminal, packet The insulating layer with rainy skirt is included, the insulating layer is hollow structure, has the cavity for accommodating cable, and the cable is plugged in described In cavity, megohmite insulant is filled in the cavity, the first stress cone and second are disposed with from inside to outside on the cable Stress cone, first stress cone and the first stress cone are arranged in the cavity, first stress cone and the second stress Cone is set on the cables respectively by first insulator and second insulator.

The double-layer stress cone outdoor terminal of the utility model, the first stress cone and the second stress cone are compatible with, are compounded in one It rises, electric field is disperseed using double-layer structure, there is significant double-layer stress dispersion effect, the utility model is made to can be adapted for electricity Higher ranked outdoor terminal is pressed, stress cone ontology is larger, is bored using double-layer stress, every small volume, and injection moulding is easy, System easy to control the quality, the first stress cone and the second stress cone are arranged on the cable by first insulator and second insulator respectively On, the installation of the first stress cone and the second stress cone is relatively firm, and installation accuracy is higher.

Further, described first stress cone one end is fixed in the first insulator, and the other end connects with cable It touches, described second stress cone one end is fixed in the second insulator, and the other end is contacted with first insulator.

Preferably, the material of first stress cone and the second stress cone is rubber.

Preferably, the megohmite insulant is insulating gas or dielectric.

The beneficial effects of the utility model are:The double-layer stress cone outdoor terminal of the utility model, by the first stress cone and Second stress cone is compatible with, and is combined with each other, is disperseed electric field using double-layer structure, has significant double-layer stress dispersion effect, The utility model is made to can be adapted for the higher outdoor terminal of voltage class, stress cone ontology is larger, is bored using double-layer stress, often Part small volume, injection moulding is easy, system easy to control the quality, the first stress cone and the second stress cone respectively by first insulator and Second insulator is set on the cables, and the installation of the first stress cone and the second stress cone is relatively firm, and installation accuracy is higher.

Description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples.

Fig. 1 is the two-dimensional representation of the utility model；

Fig. 2 is the enlarged drawing at A in the utility model Fig. 1.

In figure：1. insulating layer, 2. megohmite insulants, 3. first stress cones, 4. second stress cones, 5. first insulators, 6. Two insulators, 7. cables.

Specific embodiment

Presently in connection with attached drawing, the utility model is described in more detail.These attached drawings are simplified schematic diagram, Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows the composition related with the utility model.

A kind of double-layer stress cone outdoor terminal as shown in Figure 1, including the insulating layer 1 with rainy skirt, the insulating layer 1 is Hollow structure has the cavity for accommodating cable 7, and the cable 7 is plugged in the cavity, and insulant is filled in the cavity Matter 2, the megohmite insulant 2 are insulating gas or dielectric, and the first stress cone 3 is disposed with from inside to outside on the cable 7 With the second stress cone 4, the material of 3 and second stress cone 4 of the first stress cone is rubber, first stress cone 3 and One stress cone 3 is arranged in the cavity, and 3 and second stress cone 4 of the first stress cone passes through 5 He of first insulator respectively Second insulator 6 is arranged on the cable 7, as shown in Fig. 2, described first stress cone, 3 one end is fixed at described first In insulator 5, the other end is contacted with cable 7, and described second stress cone, 4 one end is fixed in the second insulator 6, separately One end is contacted with first insulator 5.

The double-layer stress cone outdoor terminal of the utility model, the first stress cone 3 and the second stress cone 4 are compatible with, are compounded in Together, electric field is disperseed using double-layer structure, there is significant double-layer stress dispersion effect, can be adapted for the utility model The higher outdoor terminal of voltage class, stress cone ontology is larger, is bored using double-layer stress, every small volume, and injection moulding is held Easily, system easy to control the quality, the first stress cone 3 and the second stress cone 4 are arranged on respectively by first insulator 5 and second insulator 6 On the cable 7, the installation of the first stress cone 3 and the second stress cone 4 is relatively firm, and installation accuracy is higher.

Using the above-mentioned desirable embodiment according to the utility model as enlightenment, pass through above-mentioned description, related work people Member can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This item is real The content being not limited to novel technical scope on specification, it is necessary to which its technology is determined according to right Property range.

Claims (4)

1. a kind of double-layer stress bores outdoor terminal, it is characterised in that：Including the insulating layer (1) with rainy skirt, the insulating layer (1) For hollow structure, there is the cavity for accommodating cable (7), the cable (7) is plugged in the cavity, is filled in the cavity Megohmite insulant (2) is disposed with the first stress cone (3) and the second stress cone (4) on the cable (7) from inside to outside, described First stress cone (3) and the first stress cone (3) are arranged in the cavity, first stress cone (3) and the second stress cone (4) it is arranged on the cable (7) by first insulator (5) and second insulator (6) respectively.

2. double-layer stress as described in claim 1 bores outdoor terminal, it is characterised in that：Described first stress cone (3) one end is solid Surely it is arranged in the first insulator (5), the other end is contacted with cable (7), the second stress cone (4) one end fixed setting In the second insulator (6), the other end is contacted with first insulator (5).

3. double-layer stress as described in claim 1 bores outdoor terminal, it is characterised in that：First stress cone (3) and second The material of stress cone (4) is rubber.

4. double-layer stress as described in claim 1 bores outdoor terminal, it is characterised in that：The megohmite insulant (2) is insulation gas Body or dielectric.